In 2010 on the Monster Ball tour. Rumor has it Gaga has previously dropped $4,500 on EMF detectors. She hired paranormal groups to check out every single hotel before she set foot in it (ironic considering her acting in “American Horror Story: Hotel”). This time she hired a medium and held a seance to tell him to go away and evidently, it worked.

https://www.thefader.com/2018/10/17/lady-gaga-irish-seance-ghost-ryan